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Old 02-12-2013, 11:36 AM   #1
jark
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Default Fermenter has high pressure, lots of foam

Brewed a porter on Sunday (this is my second batch). I had to leave in overnight in the fermenting bucket to cool and pitched the yeast Monday morning. I went back this morning (24 hours) to make sure the airlock was bubbling, and the fermenter had a high pressure inside. The bucket lid was swollen out, airlock full of foam, a nice spray pattern on the wall of the closet it was in. I pulled out the airlock and it sprayed out everywhere. I let it sit while more foam poured out the hole in the lid.

WHAT SHOULD I DO? I'm afraid to put the airlock back on; I don't want the whole lid to pop off under pressure.

Thanks for helping our a newbie. My first batch just went a little too smooth I guess.

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Old 02-12-2013, 11:41 AM   #2
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Rig a blow off tube in place of the airlock & put the other end in a jug 1/3 full of water & a splash of starsan.
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Old 02-12-2013, 12:04 PM   #3
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Ok. I put tubing from the lid gasket to a bucket of water. LOTS of gas bubbles coming out. Should I just leave it like that until it stops then put the airlock back? Or leave it like that through fermentation?

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Old 02-12-2013, 12:07 PM   #4
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Airlocks are trash. Toss it out and use a blowoff tube from now on.

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Old 02-12-2013, 12:13 PM   #5
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Originally Posted by PhelanKA7 View Post
Airlocks are trash. Toss it out and use a blowoff tube from now on.
Airlocks are not trash, they just are not the best thing to use for brewing BEER. Get used to using a blow off tube for the rest of your life. The bigger the diameter of the hose, the better. Use a hose only, that fits snuggly in your carboy plus the bucket of water/Star San. I thought my fermeting temp was too high,turned it down to 64 and I still get stuff in my blow off tube.

I'm fermenting Coffee Porter in pic
photo.jpg  
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Old 02-12-2013, 12:18 PM   #6
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Airlocks are trash. That is my story and I am sticking to it.

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Old 02-12-2013, 12:21 PM   #7
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Is this a high-gravity beer? If not, you may be fermenting at too high a temperature. What's the temperature of the wort?

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Old 02-12-2013, 01:10 PM   #8
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I keep it in the coolest part of my place. Not high gravity. When I pitched the yeast the wort was 74 deg. Now, with fermentation, the temp is higher but I don't know exactly what. Higher than 76, that's what my stick on thermometer on my fermenter goes up to. I'll check the actual temp this afternoon when I get back home.

So I should just plan to keep the hose on? I have a bucket not a carboy. I just ran the hose into the hole in the bucket lid where the airlock goes. Should I leave it like that or connect the hose onto my 3 piece airlock? The hose seemed like a pretty tight fit in the hole.

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Old 02-12-2013, 01:12 PM   #9
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Just leave it like it is for now.
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Old 02-12-2013, 01:14 PM   #10
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Quote:
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I keep it in the coolest part of my place. Not high gravity. When I pitched the yeast the wort was 74 deg. Now, with fermentation, the temp is higher but I don't know exactly what. Higher than 76, that's what my stick on thermometer on my fermenter goes up to. I'll check the actual temp this afternoon when I get back home.

So I should just plan to keep the hose on? I have a bucket not a carboy. I just ran the hose into the hole in the bucket lid where the airlock goes. Should I leave it like that or connect the hose onto my 3 piece airlock? The hose seemed like a pretty tight fit in the hole.
That's way too warm! Try to put it in a cooler with a water bath and add some ice. A water bath will help maintain the temperature in the 60s.

You normally want to pitch at about 65 (or less), and keep it no higher than about 68. That is one reason it's so explosive- a "hot" fermentation will really rock.

A very active fermentation produces heat, and the more heat it produces, the faster it goes. I've personally seen the fermentation temperature be 10 degrees warmer than ambien temperature.

Next time, cool the wort down better so when fermentation starts it doesn't exceed 70 degrees.

I've needed a blow off tube exactly one time in all of my years brewing. But I ferment cool, and the bucket has plenty of headspace. I use a regular airlock every time.
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